CN104395648B - Double-clutch type power transmission with the alternative moment of torsion transmission path for providing alternative gearratio - Google Patents

Double-clutch type power transmission with the alternative moment of torsion transmission path for providing alternative gearratio Download PDF

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Publication number
CN104395648B
CN104395648B CN201380016153.9A CN201380016153A CN104395648B CN 104395648 B CN104395648 B CN 104395648B CN 201380016153 A CN201380016153 A CN 201380016153A CN 104395648 B CN104395648 B CN 104395648B
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CN
China
Prior art keywords
gear
hop
output
axle
clutch
Prior art date
Application number
CN201380016153.9A
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Chinese (zh)
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CN104395648A (en
Inventor
肯尼斯·哈特曼·安德烈亚森
乔纳森·大卫·迪格尔
布雷德利·爱德华·威廉斯
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环太平洋工程产品(1987)有限公司
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Priority to US201261614999P priority Critical
Priority to US61/614,999 priority
Application filed by 环太平洋工程产品(1987)有限公司 filed Critical 环太平洋工程产品(1987)有限公司
Priority to PCT/CA2013/050236 priority patent/WO2013138941A1/en
Publication of CN104395648A publication Critical patent/CN104395648A/en
Application granted granted Critical
Publication of CN104395648B publication Critical patent/CN104395648B/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H3/00Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/006Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion power being selectively transmitted by either one of the parallel flow paths
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H3/00Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/16Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion essentially with both gears that can be put out of gear and continuously-meshing gears that can be disengaged from their shafts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H3/00Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/006Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion power being selectively transmitted by either one of the parallel flow paths
    • F16H2003/008Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion power being selectively transmitted by either one of the parallel flow paths comprising means for selectively driving countershafts
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/19Gearing
    • Y10T74/19219Interchangeably locked
    • Y10T74/19242Combined gear and clutch

Abstract

A kind of dual clutch transmission, it has includes the Part I and Part II of first clutch and second clutch respectively.The clutch can be operable to allow the moment of torsion carried out from input unit to output section by means of Part I and Part II to transmit.The torque transmission paths of connection Part I and Part II provide one or more extra gear ratios so that moment of torsion is delivered to output section by one or more levels of Part I and one or more levels of Part II from input unit.The extra gear ratio can include ultralow gear ratio.Some implementation methods provide and are suitable to drive the speed changer for the pump used in the hydraulic fracturing of geologic(al) formation.

Description

Double-clutch type power with the alternative moment of torsion transmission path for providing alternative gearratio Speed changer

Cross-Reference to Related Applications

This application claims the priority of the U. S. application No.61/614,999 submitted on March 23rd, 2012.For U.S. State, this application claims be on March 23rd, 2012 submit to, it is entitled " have provide alternative gearratio alternative moment of torsion transmission The U. S. application No.61/614 of the double-clutch type power transmission in path ", 999 rights and interests under 35U.S.C. § 119 should The complete disclosure of application is incorporated in text by reference.

Technical field

The present invention relates to power transmission.It is particularly related to a kind of double-clutch type power transmission.

Background technology

Double-clutch power speed changer provides two alternative paths for the moment of torsion transmission from input unit to output section. Double clutch --- clutch in each path --- controls the path in use at any given time.Double clutch becomes Being advantageous in that for fast device, can comparatively quickly occur the displacement between gear, and moment of torsion can be by gearshift Passed by continuous sending.

Fig. 1 schematically shows dual-clutch transmission 10.Speed changer 10 has input shaft 12, and input shaft 12 can be by Connect into by engine or other driver drives.Moment of torsion from input shaft 12 is transferred to by first clutch 14 (" C1 ") The Part I 16 of speed changer 10.Moment of torsion from input shaft 12 can also be transferred to speed change by second clutch 15 (" C2 ") The Part II 17 of device 10.Part 16 and 17 drives output shaft 18.Part 16 provides odd gearset ratio, and part 17 provides idol Number gear ratio.In operation, speed changer 10 can be logical while the Part I 16 of speed changer 10 is in first (low) gear Engagement clutch 14 first is crossed to operate.When needing for speed changer 10 to shift to more high tap position, Part II 17 can from Clutch 15 is pre-selected in the second gear while disconnecting (that is, not to the transmitting torque of Part II 17).When need implement During gearshift, with cut-off clutch 14 and can close clutch 15, be achieved in power by speed changer 10 second from Clutch 15 and Part II 17 are transferred to the situation of output section 18.Can be next more high-grade by the way that Part I 16 is arranged in Simultaneously then implement another gearshift by closing clutch 14 and shift gears cut-off clutch 15 while in position (for example, third gear).Adjust Low or first gear can be implemented by overturning the process.

There is provided appropriate electronically or mechanically control system (not shown) with implement gearshift.

Many different dual-clutch transmissions have been described in document.One of ordinary skill in the art it is understood that The physical unit of these speed changers can be set in a number of different ways.

It is that the aforementioned exemplary of correlation technique and involved limiting factor are intended to be illustrative rather than exclusive.To this For art personnel, other limiting factors of correlation technique will be apparent when reading specification and scanning accompanying drawing.

The content of the invention

Implementation below and its each side coupling system, tool and method are described and illustrated, these systems, instrument and Method means exemplary and illustrative, rather than is restricted in terms of scope.In various embodiments, above mentioned problem In one or more problems reduced or eliminated, and other embodiment for other improve.

An exemplary aspect of the invention be a kind of speed changer, the speed changer include input unit, output section, hop, Clutch and torque-transmitting mechanisms.Input unit and output section connect via hop.Hop can be included in input unit There is provided between output section multiple first gears than Part I and provide one or more second gears than second Part.Into input unit to be optionally attached to hop, (input unit is attached to first to die clutch construction by first clutch Hop, and input unit is attached to the second hop by second clutch).Torque-transmitting mechanisms can be grasped optionally The alternative moment of torsion that moment of torsion is transferred into the second hop to provide from input unit to output section from the first hop is made to pass Defeated path.

The alternative moment of torsion transmission path includes at least one of geared system level of the first hop geared system level And second hop geared system level at least one of geared system level.The alternative moment of torsion transmission path is additionally provided One or more gear ratios between input unit and output section, one or more gear ratio is different from the multiple First gear ratio and one or more second gear ratio.

In another aspect of this invention, speed changer provides gear reduction stage in the first hop.In addition, the alternative Transmission path can include that the geared system level in one or more geared systems level by the first hop is provided At least one gear reduction stage and by the second hop one or more geared systems level in a gear fill At least one gear reduction stage of level offer is provided.The alternative transmission path can include the connection first in alternative transmission path Back gear in the part of the part of hop and the second hop.

In still another aspect of the invention, the torque-transmitting mechanisms include being configured to first axle in the first hop with The gear train of transmitting torque between second axle of the second hop.The gear train can include jackshaft, and the jackshaft is carried The gear being meshed with the second gear in the first gear in first axle and the second axle.

Another aspect of the present invention includes a kind of method for by transmission configuration into alternative gear ratio is provided.The speed change Device can include:Input unit;Output section;First hop, the first hop provides one or more The gear decelerations Level, and a first gear ratio of the multiple first gears between input unit and output section than in can be configured to provide; And second hop, the second hop provides one or more gear reduction stages, and can be configured to provide The second gear ratio of multiple second gears between input unit and output section than in.Speed changer can have the first clutch Device, first clutch is operable to that input unit is optionally attached to the first hop;And second clutch, second Clutch is operable to that input unit is optionally attached to the second hop.The method is included torque-transmitting mechanisms structure The alternative moment of torsion that moment of torsion is transferred into the second hop to provide from input unit to output section from the first hop is caused to pass Defeated path, the alternative moment of torsion transmission path is included in one or more gear reduction stage of the first hop at least At least one of one an or more gear reduction stage of one gear reduction stage and the second hop gear subtracts Fast level, and one or more gear ratios are provided between input unit and output section, one or more gear ratio Different from the multiple first gear than the gear ratio with the multiple second gear than in.

It is shown in the drawings and/or describes other aspects and example embodiment in the following description.

Brief description of the drawings

Accompanying drawing depicts nonrestrictive example embodiment of the invention.

Fig. 1 is the schematic diagram of dual clutch transmission.

Fig. 2 is showing for the dual clutch transmission for being configured to provide alternative gear ratio according to embodiments of the present invention It is intended to.

Fig. 3 A are to be become according to the double-clutch type for being configured to provide the first moment of torsion transmission path of embodiments of the present invention The schematic diagram of fast device.

Fig. 3 B are to be become according to the double-clutch type for being configured to provide the second moment of torsion transmission path of embodiments of the present invention The schematic diagram of fast device.

Fig. 3 C are the double-clutch type for being configured to provide alternate moment of torsion transmission path according to embodiments of the present invention The schematic diagram of speed changer.

Fig. 4 is the schematic diagram of the dual clutch transmission according to another example embodiment of the invention.

Fig. 5 is the schematic diagram of the dual clutch transmission according to another embodiment of the present invention.

Fig. 5 A are showing for the line A-A along Fig. 5 of the dual clutch transmission according to another embodiment of the present invention Meaning property sectional view.

Fig. 6 is the front view of the dual clutch transmission according to embodiments of the present invention.

Specific embodiment

Through following description, detail is set forth with for those skilled in the art provides more thoroughly understanding.However, In order to avoid unnecessarily making the disclosure be difficult to understand, well-known element may be not shown or described in detail.To this skill It is that the following description of the example of art is not intended to limit or system is limited to any example embodiment of concrete form.Phase Ying Di, description and accompanying drawing are considered as illustrative and not restrictive.

Fig. 1 schematically shows the typical dual clutch transmission according to prior art.In figure, including in fig. 2, The identical part of speed changer 10 with Fig. 1 is endowed identical reference.As shown in Figure 2, speed changer 20 is provided and passed through Transmission configuration is set up into the choosing of different gear ratios (for example, ultralow gear ratio) into alternative moment of torsion transmission path 22 is provided Select.In shown implementation method, moment of torsion is transferred to the second transport part by path 22 from the output section of the first hop 16 Divide 17 input unit.When in this configuration, speed changer 20 has the gear being constructed for Part I 16 and Part II 17 The gear ratio of the product of ratio.If Part I 16 and Part II 17 are configured to correspondence deceleration, in shown pattern The resultant gear retio of the speed changer 20 when middle can be configured to itself than Part I 16 or Part II 17 to provide The smaller gear ratio of gear ratio.

And path 22 is passed completely through the first hop 16 or the second hop 17.In some implementations In mode, one of first hop 16 and the second hop 17 or both provide more than one geared system level (for example, more than one gear reduction stage).In this embodiment, path 22 can be configured to include the first hop 16 at least one geared system level and at least one geared system level of the second hop 17.In some embodiments, Path 22 is included in the torque coupler for providing extra transmission between the first hop 16 and the second hop 17 (torque coupling).In this embodiment, the final gear ratio for being provided by alternative path 22 is by the first transport part Gear ratio that the part that path 22 in points 16 is crossed provides, by between the first hop 16 and the second hop 17 Gear ratio and the product of the gear ratio provided by the part that the path 22 in the second hop 17 is crossed that connector is provided.

Fig. 2 shows alternative power transmission path 22, and the alternative power transmission path 22 is from odd gearset ratio (example Such as, for the first gear, third gear, fifth speed position etc. gearratio) the first hop 16 flow to even gears Than second hop 17 of (for example, for gearratio of the second gear, fourth speed position, sixth speed position etc.), however, first passes Defeated part 16 can have even gears ratio, and the second hop 17 has odd gearset ratio.

When not constructing in the manner shown in fig. 2, speed changer 20 can with the double clutch speed change shown in Fig. 1 The identical mode of device 10 is operated, and something in common is that power can be transferred to first from input shaft 12 by first clutch 14 Hop 16 and be then transferred to output shaft 18 (or, second transmission is transferred to by second clutch 15 from input shaft 12 Part 17 is simultaneously then transferred to output shaft 18).Can in a number of different ways be implemented according to the details of the construction of speed changer 20 Alternative transmission path 22.

In some embodiments, the connector between the first hop 16 and the second hop 17 (can be claimed It is " bang path ") include one of following or more person:Gear train, belt drive, chain drives, fluid driver Deng.For example, fluid driver can be set, and in the fluid driver, the part driven fluid pump of the first hop 16, stream Body motor is coupled to drive the part of the second hop 17, and fluid motor to be driven by the fluid pumped by fluid pump.

In some embodiments, bang path is provided and removes 1:Gear ratio outside 1.For example, being needed in alternative path 22 In the case of providing ultralow gear, bang path can provide the downshift in gear drive.Need to provide super in alternative path 22 In the case of high tap position, bang path can provide the upshift in gear drive.

Fig. 3 A, Fig. 3 B and Fig. 3 C schematically show example embodiment of the invention in three kinds of different fortune The example dual-clutch transmission 21 of row state.Moment of torsion is transferred to output section 24 by speed changer 21 from input unit 23.Speed changer 21 With two hops, each hop is provided which the first order and the second level of geared system.Part I includes first Level 25A and second level 26A.Part II includes first order 25B and second level 26B.Any portion can be operated into moment of torsion Output section 24 is transferred to from input unit 23.Each grade can provide the increase or reduction of rotating speed.Part I and Part II A series of gear ratio of increases can jointly be provided so that speed changer can be by means of making moment of torsion through Part I and making torsion Square alternately and by a series of gear ratios for incrementally increasing upshifts through Part II, or is progressively reduced by a series of Gear ratio downshift.

Speed changer 21 has additional stages 27, and the additional stages 27 can be connected between the first order and the second level so that moment of torsion The second level 26A or 26B (see Fig. 3 C) of another part are transferred to from the first order 25A or 25B of a part.In some embodiment party In formula, first order 25A, 25B, the second level 26A, 26B and/or additional stages 27 can change the direction of rotation, change the axle of rotation Line etc..First order 25A, 25B, the second level 26A, 26B and additional stages 27 can each include that gear connector, band connection are filled Put, one of torque converter etc. or more person.In example embodiment, each of the first order 25A and 25B and Each of the second level 26A and 26B include a pair of gears.In a preferred embodiment, the gear in each pair gear is often engaged. In some embodiments, additional stages 27 also include meshing gear.In some this implementation methods, the gear of additional stages 27 can It is not meshed with when additional stages 27 are not used to transmitting torque.

Fig. 3 A show the speed changer of the first mode of operation transmitted by the first power path 28A in wherein moment of torsion 21.Power path 28A flow to output section 24 from input unit 23 by first order 25A and second level 26A.

Fig. 3 B show the speed changer of the second mode of operation transmitted by the second power path 28B in wherein moment of torsion 21.Power path 28B flow to output section 24 from input unit 23 by first order 25B and second level 26B.

Fig. 3 C show the speed changer of the 3rd mode of operation transmitted by the 3rd power path 28C in wherein moment of torsion 21.Power path 28C flow to additional stages 27 from input unit 23 by first order 25A, then flow to output section by second level 26B 24.Additional stages 27 can allow the extra of rotating speed to be reduced or increased, and extra being reduced or increased is larger or different from can be single Solely by being reduced or increased that first order 25A, 25B and the second level 26A, 26B are obtained.

Specified power path shown in Fig. 3 C is not intended to the only possible power path of speed changer 21, and speed change Device 21 is adapted to other power paths.In a non-limiting example, speed changer 21 can have from input unit 23 by first Level 25A is flow to additional stages 27 and the power path of second level 26B and output section 24 is then flow to by first order 25B.

The various power paths of speed changer 21 can be engaged and disengagement in many modes known in the art.For example, First order 25A, 25B, the second level 26A, 26B and additional stages 27 can by sychronisation, dog-clutch, friction clutch, The engagements such as multidisc clutch or disengagement.

Fig. 4 again schematically show the example transmission 30 of example embodiment of the invention.Speed changer 30 Moment of torsion is transferred to output shaft 18 from input shaft 12.Speed changer 30 has double clutch 31A and 31B.The output of clutch 31A Portion drive shaft 32A.The output section drive shaft 32B of clutch 31B.Axle 32A carrier gears 33A and 34A, gear 33A and 34A with hold It is loaded in gear 35A and the 36A engagement on parallel axes 37A.Sychronisation 38A can be by the gear choosing in gear 35A and 36A Axle 37A is attached to selecting property, and another gear in gear 35A and 36A is freewheel.Gear 39A and 40A are similarly installed at On axle 37A.Sychronisation 41A can be slidably mounted on axle 37A optionally to couple a tooth in gear 39A and 40A Wheel together with axle 37A so as to rotate, and another gear in gear 39A and 40A is freewheel.Gear 39A and 40A respectively with Gear 43 and 44 on output shaft 18 couples.

, it is understood that the moment of torsion from input shaft 12 can be attached to when clutch 31A is engaged by axle 37A Output shaft 18.Moment of torsion by it is described in gear 33A and 35A or 34A and 36A a pair (depend on sychronisation 38A position Put) it is transferred to axle 37A.Moment of torsion then by it is described in gear 39A and 43 or 40A and 44 a pair (depend on sychronisation The position of 41A) it is transferred to output shaft 18.By first power transmission path provide gear ratio by moment of torsion transmission by It is described that the diameter ratio of gear is determined.First power is transmitted be can be chosen such that to the gearratio that gear is provided by described Path provides a gear ratio in four obtainable gear ratios.

Gear of the second alternative power transmission path by second clutch 31B and on the second parallel axes 37B come There is provided.Second power transmission path can provide extra four gear ratio between input shaft 12 and output shaft 18.At certain In a little implementation methods, the gearratio provided by the second path is between two parties, by making for the gearratio provided by first path The gear ratio on first path is selected to be replaced by the gear ratio that the second path provides with selection, enabling by eight progressions Gear ratio makes the speed changer 39 upshift or downshift.

Speed changer 30 is configured to provide alternative power transmission path by the 3rd clutch 50.In the implementation method for showing In, the 3rd clutch 50 allows moment of torsion to be delivered to parallel axes 37A from parallel axes 37B.The torque-transmitting mechanisms allow gear train For above-mentioned first power transmission path at least some of part together with least some of part of the second power transmission path by Use, to produce alternative power transmission path.The alternative power transmission path optionally but can be advantageously provided by upper Geared system outside the scope that the first moment of torsion transmission path and the geared system of the second moment of torsion transmission path that face discusses are provided.

In order to speed changer as shown in Figure 4 30 is configured to be operated with alternative torque-transmitting mode, first clutch 31A Disengagement, second clutch 31B is engaged, and the 3rd clutch 50 is also engaged.In the embodiment as shown, engage Axle 37B is attached to 3rd clutch 50 drive shaft 51 of carrier gear 52.Gear 52 by gear 34 and 36A or can pass through Gear 34, gear 33A and gear 35A (depending on the position of sychronisation 38A) carry out drive shaft 37A.When this is complete, input shaft Moment of torsion at 12 is passed through second clutch 31B to axle 32B.Moment of torsion (is depended on by gear mesh 33B/35B or 34B/36B In the position of sychronisation 38B) it is transferred to axle 37B.Direct torque coupler between axle 37B and output shaft 18 is disconnected and connects Close.This for example can be realized by the way that sychronisation 41B to be positioned to make gear 39B and 40B be freewheel.

Moment of torsion is transferred to axle 32A and (is depended on synchronous by gear mesh 33A/35A or 34A/36A by gear 52 and 34A The position of device 38A) it is transferred to axle 37A from axle 32A.Moment of torsion then (is taken by one of gear mesh 39A/43 or 40A/44 Certainly in the position of sychronisation 41A) it is transferred to output shaft 18.Thus, it is possible to it was observed that, the general gear provided by the alternative constructions Than there is provided at least one extra gear ratio.The alternative constructions can include extra retarding stage.This can be used to for example carry For low-low.

Fig. 5 schematically shows the example of the dual-clutch transmission 60 of another implementation method of the invention.Become Fast device 60 is different in many aspects from the speed changer 30 of Fig. 4, including:The drive shaft 51 of Fig. 4 implementation methods, clutch 50 and second Parallel axes 37B has been modified into providing the drive shaft 62 of one.Drive shaft 62 carrier gear 35B, 36B, 39B and 40B and It is substantially similar with the second driven in parallel axle 37B at least this respect.Position carry gear of the drive shaft 62 according to sychronisation 66 64, gear 64 can be optionally attached to drive shaft 62 and be rotated with transmitting torque or freely by sychronisation 66.Gear 64 can drive jackshaft 72 by gear 74.Then jackshaft 72 and gear 74 can (it instead of by gear 68 The gear 36A of Fig. 4 implementation methods) the first parallel axes 37A and thus offer torque-transmitting mechanisms are provided.Moment of torsion then passes through gear Output shaft 18 is transferred to one of 39A/43 or 40A/44 (depending on the position of sychronisation 41A).

Gear 64 can optionally be coupled with by dog-clutch, sychronisation, multidisc clutch and gear Transmitting torque from shaft 62 is transferred to gear 74 by the action of 74 engaging/disengagings engagement or any other suitable device.

In the configuration for showing, moment of torsion passes through clutch 31B to axle 32B from input shaft 12.Clutch 31A is to disconnect 's.Axle 32B transfers a torque to axle 62 by gear 33B/35B or in some cases by gear 34B/36B, and this is depended on That one in gear 35B and 36B is bonded into by sychronisation 38B and is rotated together with axle 62.Generally, gear 39B and 40B be Sychronisation 41B is allowed through freely to rotate.As described above, moment of torsion is then transferred to gear 74 and jackshaft by gear 64 72, gear 74 and jackshaft 72 transfer a torque to the parallel axes 37A of gear 68 and first again.Gear 68 passes through sychronisation 38A The first parallel axes 37A is attached to, and gear 35A is allowed to free rotation.Moment of torsion can then pass through gear 39A/43 or gear 40A/44 is transferred to output shaft 18, and it is flat that this which one depended in gear 39A, 40A is attached to first by sychronisation 41A Row axle 37A.

As a result, drive shaft 62, the parallel axes 37A of jackshaft 72 and first can be connected in series to provide extra gear ratio. The extra gear ratio can provide the extra deceleration of the resultant gear retio that the alternative configuration by showing is provided.The alternative gearratio can For example to provide low-low.

In some embodiments, jackshaft 72 can carry the additional gear engaged with one of gear 68 or 64 (not shown).In this embodiment, gear 74 can be engaged only with one of gear 68 or 64, rather than in such as Fig. 5 It is shown that both engage with gear 68 and 64.The configuration can be provided in addition to the deceleration of the implementation method shown in Fig. 5 in addition Deceleration.

Fig. 5 A are the cross section along the line A-A of Fig. 5.Fig. 5 A show the example structure of axle 32A, 32B, 62,72 and 37A Type.In the embodiment as shown, axle 37A, 32A and 62 is set with V-shaped configuration.This contributes to replacing for coupling spindle 37A and 62 Select moment of torsion transmission path.

The longitudinal axis of axle 37A and 62 is illustrated approximate horizontal alignment.Axle 32B and 32A are illustrated to be positioned approximately in axle 37A Lower section with 62, and be substantially equally horizontally spaced apart between axle 37A and 62.Axle 72 is also shown as being located substantially at axle 37A And 62 lower section and substantially horizontally positioned between axle 37A and 62.In other embodiments, axle 72 can be located substantially at The top of axle 37A and 62.As shown in Figure 5 A, axle 32A can be connected to gear 68 by gear 34A.Axle 72 can also pass through Gear 74 is connected to gear 68.In one embodiment, when gear 68 is driven by gear 34A, gear 64 is allowed to Freely rotated by sychronisation 66, therefore, gear 74 and axle 72 can also rotate in the case of not transmitting torque.Conversely Ground, when gear 68 is driven by gear 74, axle 32A and gear 34A is allowed to freely turn because clutch 31A disconnects It is dynamic.

Speed changer 60 shown in Fig. 5 is shown having sychronisation 66.This is not required, it is also possible to using for connecing Close and disconnect other mechanisms of gear 64.For example, axle 62 can have clutch or other mechanisms well known in the prior art with Gear 64 is selectively allowed for freely to be rotated relative to axle 62.Additionally, axle 62 is shown as single axle.This is not required.Axle 62 can include two or more parts.For example, the part of the carrier gear 64 of axle 62 can be with carrier gear 35B and 36B Part separate.In this embodiment, the part of the carrier gear 64 of axle 62 can by sychronisation, clutch etc. with The other parts engagement of axle 62 and disengagement.In other embodiments, gear 74 can by bearing, roller etc. relative to Jackshaft 72 is freely rotated.In other embodiments, gear 74 can be allowed through sychronisation, clutch etc. relative to Axle 72 is optionally freely rotated.

Fig. 6 shows the top view of the inside of dual-clutch transmission 200.There is dual-clutch transmission 200 supporting to become The housing 202 of fast device part.Input shaft 204 provides the input unit for rotating energy or moment of torsion.Input shaft 204 is connected to One clutch 206 and second clutch 208.Each clutch can make the subassembly selection of input shaft 204 and clutch downstream Property engagement or disengagement.

Input shaft 204 is attached to first axle 210 by first clutch 206.First axle 210 has gear part 212, the gear Portion 212 has the central axis with the central axis rough alignment of input shaft 204.In the embodiment as shown, first axle 210 Including two gears (214, unshowned second gear) at gear part 212.Unshowned gear may be located at gear 234 underface.These gears (214, unshowned second gear) can be integrally formed with first axle 210 or can be Separate part.First axle 201 for example can support to be rotated by bearing (not shown).

Second axle 218 is attached to input shaft 204 by second clutch 208.Second axle 218 has gear part 220, the tooth Wheel portion 220 has and the equal rough alignment of central axis of the gear part 212 of the central axis and first axle 210 of input shaft 204 Central axis.Second axle 218 includes being located substantially at the gear 222,224 at gear part 220.Second axle 218 quilt in housing 202 Support to be rotated.

First axle 210 can optionally be attached to the first parallel axes 230.Especially, gear 214 could be attached to gear 232, and gear 234 could be attached to the corresponding gear (not shown) in first axle 210.Gear 232 and 234 is arranged on first On parallel axes 230.Gear train 214/232, and 234 and corresponding gear (not shown) different gear ratios can be provided.Gear Group 214/232 and/or 234 and corresponding gear (not shown) may be at often engagement.

First parallel axes 230 can have to be used to be selectively engaged with gear 232,234 and the synchronous of disengagement fills Put 236.Sychronisation 236 (can not yet explicitly be shown by the selector fork for such as mechanically, electrically or hydraulically activating Go out) etc appropriate actuator position.Electronic controller (not shown) can be alternatively set control selector fork with Sychronisation 236 is moved into gear 232, one of 234 is locked into axle 230 or into neutral position.Work as gear 232nd, any one of 234 it is engaged when, moment of torsion can be transferred to the first parallel axes 230 from first axle 210.When gear 232, During any one of 234 disengagement, gear can freely be rotated on the first parallel axes 230.

First parallel axes 230 supports output gear 237,238 and sychronisation 239.Output gear 237,238 can be respectively Output shaft 240 is transferred a torque to by gear 246,248.Gear 237,238 can have and the substantially phase of gear 232,234 Same configuration.Gear mesh 237/246 can be chosen to the different gear ratio of offer with 238/248.Sychronisation 239 can with Operated above with respect to the roughly the same mode of the mode described by sychronisation 236.

Second axle 218 can optionally be attached to the second parallel axes 250.In the embodiment as shown, gear 222, 224 engage with the gear 252,254 of the second parallel axes 250.Gear 252,254 can be flat with second by sychronisation 256 Row axle 250 is selectively engaged or disengagement.Sychronisation 256 can with above with respect to described by sychronisation 236 The roughly the same mode of mode is operated.

Second parallel axes 250 supports output gear 257,258 and sychronisation 258.Such as above with respect to the first parallel axes 230 Described, from the second parallel axes 250 can be transferred to moment of torsion by gear 246,248 respectively by output gear 257,258 Output shaft 240.Gear 257,258 can have and the roughly the same configuration of gear 252,254.Gear mesh 257/246 and 258/ 248 provide mutually different gear ratio.Sychronisation 259 can by with above with respect to described by sychronisation 236 in the way of Roughly the same mode is operated, and can have neutral gear position, and in the neutral gear position, gear 257,258 is allowed to Freely rotated on second parallel axes 250.

During running, one of clutch 206 and clutch 208 can be engaged to from input shaft 204 Moment of torsion is transferred to one of correspondence in the axle 218 of first axle 210 and second.When clutch 206 is engaged, first axle 210 can be with Rotate the first shaft gear (214, not shown).In the first gear, sychronisation 236 can be configured to engage gear 232 and permit Perhaps gear 234 is freely rotated.Moment of torsion is transferred to the first parallel axes 230 by gear 214 and 232.In the gear of identical first, Sychronisation 239 can be configured to engage gear 237 and allow gear 238 freely to rotate.Moment of torsion passes through from the first parallel axes 230 Gear 237 and output gear 246 are transferred to output shaft 240.

In the second gear, clutch 208 is engaged and the disengagement of clutch 206.Second axle 218 can then make Gear 222,224 is rotated.In the second gear, sychronisation 256 can be configured to engage gear 252 and allow gear 254 certainly By rotating.Moment of torsion is transferred to the second parallel axes 250 by gear 222 and gear 252.In the second gear, sychronisation 259 can To be configured to engage gear 257 and allow gear 258 freely to rotate.Moment of torsion is transmitted from the second parallel axes by gear 257, passed through Output gear 246 is to output shaft 240.

Similarly, gear 214,222,224,232,234,237,238,252,254,257,258 and unshowned gear In each gear can be different available to provide between input shaft 204 and output shaft 240 with various combined engagements Gear ratio.In some embodiments, speed changer 200 provides 8 different gear ratios of scope.

Speed changer 200 includes jackshaft, and the jackshaft can be coupled with the second parallel axes 250 and the first parallel axes Transmitting torque between 230, so as to provide alternative moment of torsion transmission path.Fig. 6 shows the shaft-cup for being attached to the second parallel axes 250 270.Gear 272 may be located on the second parallel axes 250.Shaft-cup 270 can optionally be attached to gear 272 for second Moment of torsion between parallel axes 250 and gear 272 by means of clutch, sychronisation etc. is transmitted.Gear 272 could be attached to supporting Gear 274 on jackshaft 276.Gear 274 can be supported on jackshaft 276 and freely turn with by bearing, lubricant etc. It is dynamic.In other embodiments, jackshaft 276 can be rotated together with gear 274.Gear 274 also with the first parallel axes 230 Gear 234 is engaged.It is one or more that the connection allows the second parallel axes 250 and the second parallel axes 230 to be connected in series to provide Extra gear ratio.

Reference picture 5 and Fig. 6, when the first parallel axes 230 and the second parallel axes 250 are connected in series, speed changer 200 can be as Under constructed.Second clutch 208 is engaged and the disengagement of first clutch 206.Moment of torsion can then from input shaft 204 flow to the second axle 218 by second clutch 208.Sychronisation 256 is positioned to engage one of gear 252 or 254, Such as gear 254.Moment of torsion is transferred to the second parallel axes 250 by gear 224 and gear 254.Sychronisation 259 be positioned to it is defeated Go out the equal disengagement of gear 257 and 258, so as to allow gear 257 and 258 freely to rotate.

Referring now to Fig. 6, the engage gear 272 of shaft-cup 270 so that the second parallel axes 250, shaft-cup 270 and gear 272 can be with Transfer a torque to gear 274.Gear 274 is freely rotated around jackshaft 276.Sychronisation 236 is positioned to engage gear 234, Gear 234 receives the moment of torsion from gear 274.Sychronisation 239 is positioned to engage one of gear 237 or 238, such as tooth Wheel 238.Gear 238 transfers a torque to output gear 248 and output shaft 240.As a result, the first parallel axes that moment of torsion passes through series connection 230 and second parallel axes 250 be transferred to output shaft 240 from input shaft 204.In the embodiment as shown, this provides extra And than as obtained by the geared system being provided separately within the first parallel axes 230 or the second parallel axes 250 gear ratio Smaller gear ratio.

Speed changer 200 has and the normal meshed gears of the sychronisation being arranged for gear engaging/disengaging is engaged. Can be provided with for engaged with gear and disengagement other mechanisms.It is, for example possible to use dog-clutch.In some realities Apply in mode, the geared system for providing alternative moment of torsion transmission path is not on often engagement.In this embodiment, may be used It is meshed position and realizes alternative moment of torsion transmission path to be moved to by position that gear is never meshed, in the position that is meshed In, gear provides at least a portion of the moment of torsion transmission path between the first hop and the second hop.

In some embodiments, such as the speed changer of speed changer 200 etc can be locked against the defeated of speed changer Go out portion's (or other axles) to be rotated with stop mode (park mode).Stop mode can have by stopping speed changer and engagement Two or more transfer motion power paths of different gear ratios engage.In stop mode, two synchronizations of different gear ratios Engagement causes drive shaft restrained, this prevent the rotation of the axle.

For example, stop mode can engage the first power path and by means of clutch 31B by by means of clutch 31A Engage the second power path and be engaged with speed changer 30.In a non-limiting example, the first power path can be by connecing Close clutch 31A, by means of sychronisation 38A engage gear group 33A/35A and by means of sychronisation 41A engage gear groups 39A/43 and formed.Second power path can be by engaging clutch 31B, by means of sychronisation 38B engage gear groups 34B/36B and formed by means of sychronisation 41B engage gear group 39B/43.This cause gear 43 pass through gear 39A and 39B receives that two the two of different rotary speed inputs of gear 43 will be caused, so that lock gear 43 and output shaft 18.Due to Gear 43 can not be driven with two speed at once, therefore it is locked.In alternative implementation method, the second power path can lead to Engage gear group 40B/44 is crossed to substitute gear train 39B/43 and formed.This may result in output shaft 18 and receives to cause from tooth Wheel 43 and the two of 44 two inputs of different rotating speeds, so as to lock output shaft 18.

In another example, stop mode can by by means of clutch 206 engage the first power path and by means of Clutch 208 engages the second power path and is engaged with speed changer 200.In one example, the first power path can be with By engaging clutch 206 and gear train including the corresponding gear (not shown) on gear 234 and axle 210 (by by tooth Wheel 234 is bonded to the first parallel axes 230 via sychronisation 236) and formed.Second power path can be by engaging clutch 208th, gear train 222/252 (being bonded to the second parallel axes 250 via sychronisation 256 by by gear 252) and gear train 272/274/234 (being bonded to gear 272 so that it rotates together with the second parallel axes 250 by by shaft-cup 270) and formed.Knot Really, gear 234 with will be engaged with two gears of two different rotary speed transmitting torques, this by gear 234 lock it is in place simultaneously Therefore the rotation of the axle 210,220,230 and 250 in speed changer 200 is prevented.

Control to sychronisation or other engaging/disengaging engaging mechanisms can be for example, by biography well known in the prior art Defeated control unit is implemented.Transmission control unit can be based on transmission parameters, engine parameter, pre-programmed pattern, Yong Huming Order etc. sends out the signal of the engaging/disengaging engagement for guiding sychronisation.

Speed changer described in text has many applications.This speed changer for example can be used for the high-power of fixation should With.One this application is the pump for driving the hydrofracturing for geologic(al) formation.This pump may have big moment of torsion and power It is required that.For example, this pump can be by 5000 or bigger ppf moments of torsion of transmission (6800 or bigger Nm) in 2000 or 3000 Or the engine driving in the range of more high-power (1500kW or 2250kW or bigger).Speed changer in this application is required to carry For for example more than 10000 ppfs (13500Nm) or 25000 ppfs (34000Nm) or 45000 ppfs (61000Nm) Output torque.

Although the speed changer described in text is not limited to high-power applications (for example, being related to more than 1800 horsepowers (1350kW) Power transmission application), but this speed changer can be in this applications favourable.One advantage is, Wen Zhongsuo The speed changer of description can be controlled to provide whole speed change during moment of torsion smooth transfer.This transfers and can reduce because of gear The infringement to pump or other drive elements caused by the vibrations that suddenly change causes.In speed changer described in the text, can To allow one or two clutch to slide in a controlled manner, to realize not making the steady liter of slave unit excessive shock Shelves.

For test and/or other purposes, in the speed changer for driving the pump for hydrofracturing (or for it The speed changer that he applies) in provide ultralow gear ratio be convenient.In some embodiments, the speed changer structure described in text Cause so that alternative moment of torsion transmission path provides ultralow gear ratio, for example, than about 20:1 (for example, 20:1 or 25:1 or 50:1 Deng) smaller gear ratio.In some embodiments, speed changer is provided about 10 when with its standard mode operation:1 to 1: Gear ratio in the range of 1.In some embodiments, the gear ratio for being provided by alternative path is than speed changer with its mode standard Small twice of the minimum gear ratio that is provided during operation or more times.If for example, the minimum under the stan dard running model of speed changer Gear ratio is 6:1, then alternative torque transmission paths can provide 12:1 or smaller gear ratio.

Term is explained

Unless clearly required in text, otherwise through description and claims:

" including ", the meaning of the being interpreted as including property such as " including ", it is opposite with exclusive or exhaustive meaning; That is, the meaning for being " including but not limited to ".

" connection ", " connection " or its variant mean between two or more elements or directly or indirectly Any connection or connection;Connection between element or connection can be physics, logic or combinations thereof.

" in text ", " above ", " hereafter " and similar important word shall mean that when for describing the specification As the overall specification, rather than any special part of the specification.

The "or" of the list on two or more terms is covered to all explained below of word:Art in list Any combinations of any term in language, all terms in list, and the term in list.

Singulative " one " and " being somebody's turn to do " also implication including any suitable plural form.

Such as " vertical ", " transverse direction ", " level " that is used in the specification and any appended claims (proposition), " upward ", " downward ", " forward ", " backward ", " inside ", " outside ", " vertical ", " transverse direction ", "left", "right", "front", "rear", The word of the direction indication of " top ", " bottom ", " lower section ", " top ", " below " etc depends on described and illustrated dress The specific orientation put.Theme described in text can take various alternatives to be orientated.Correspondingly, these direction terms do not have quilt Considered critical and should not straitly be explained.

Additionally, the such as element of step, action, the process of method or program block etc can proposed to give order In the case of, alternative example can be executed in different order the conventional program with step or use the system with program block, And some processes or program block can be deleted, move, adding, dividing again, combining and/or being modified as providing alternative solution or son Combination.Each of these processes or program block can with mustn't different modes implement.Although in addition, process or program Block is shown as continuously performing sometimes, but these processes or program block can executed in parallel as an alternative, or can be in the different time Or be executed in different order.

It is related under case above in part (for example, gear, bearing, axle, component, clutch, device etc.), unless separately Point out outward, the otherwise reference (including the reference to " device ") to the part should be construed to include as the equivalent of the part The above-mentioned part of execution function (that is, functionally equivalent) any part, including with perform the example for showing of the invention The open structure of the function in property implementation method incoordinate part in structure.

It is descriptive purpose in text, it has been described that system, the specific example of method and apparatus.These are only examples.Text The technology of middle offer can be applied to the system in addition to above-mentioned example system.In implementation of the invention, many changes, remodeling, Additives, to save item and substitute be all possible.The present invention includes for technical personnel will be obvious on the implementation The variant of mode, these variants include the variant for obtaining in the following manner:It is special with equivalent feature, element and/or action substitution Levy, element and/or action;Mix and match the feature from different embodiments, element and/or action;Will be from institute in text The feature of the feature of the implementation method stated, element and/or action and other technologies, element and/or combination of actions;And/or Save the assemblage characteristic from the implementation method, element and/or action.

Therefore, it is intended that above appended claims and claims hereafter introduceds be construed as including can be reasonably The all this remodeling that is inferred to, substitute, additives, save item and sub-portfolio.The scope of claim should not be by example Described in preferred embodiment limitation, but should be given with as the consistent most broad explanation of overall description.

Claims (25)

1. a kind of speed changer (20,21,30,60,200), including:
Input unit (12,23,204);
Output section (18,24,240), the output section includes one or more gears;
First hop (16,25A, 26A), first hop provides one or more geared systems level, and And a first gear of the multiple first gears between the input unit and the output section than in can be configured to provide Than;
Second hop (17,25B, 26B), second hop provides one or more geared systems level, and And one or more second gear ratios between the input unit and the output section can be configured to provide;
First clutch (14,31A, 206), the first clutch is operable to optionally be attached to the input unit First hop;
Second clutch (15,31B, 208), the second clutch is operable to optionally be attached to the input unit Second hop;And
Torque-transmitting mechanisms (22,27,50,74,274), the torque-transmitting mechanisms can optionally operate into by moment of torsion from First hop is transferred to second hop to provide from the input unit to the torsion of the alternative of the output section Square transmission path, the alternative moment of torsion transmission path is included in one or more geared systems level of first hop At least one geared system level and second hop one or more geared systems level at least one of Geared system level, and there is provided from the multiple first gear than with one or more second gear than it is different One or more gear ratios between the input unit and the output section;
Wherein:
First hop includes first axle (37A, 210) and connects the first axle to drive the first of the output section Torque coupler, first torque coupler is one or more with the output section including what is carried by the first axle One or more gears (39A, 40A, 237,238) of gear (43,44,246,248) often engagement, wherein, the speed changer Including for be selectively engaged with first torque coupler or disengagement mechanism (41A, 239);
Second hop includes the second axle (37B, 62,218) and connects second axle to drive the output section Second torque coupler, second torque coupler include being carried by the second bearing with one of the output section or more One or more gears (39B, 40B, 257) of multiple gears (43,44,246) often engagement.
2. speed changer according to claim 1, wherein, one or more a gear dress of first hop Putting level includes one or more gear reduction stages.
3. speed changer according to claim 2, wherein, the alternative moment of torsion transmission path includes at least one by described the Gear reduction stage that geared system level in one or more geared system level of one hop is provided and At least one is provided by the geared system level in one or more geared system level of second hop Gear reduction stage.
4. speed changer according to claim 1, wherein, the alternative moment of torsion transmission path includes being in the alternative moment of torsion Reducing gear in the part of connection first hop of transmission path and the part of the part of second hop Wheel apparatus.
5. speed changer according to claim 1, wherein:
The torque-transmitting mechanisms include being configured to the gear train of the transmitting torque between the first axle and second axle.
6. speed changer according to claim 5, wherein, the gear train includes the first gear in the first axle (68,234) and the second gear (64,272) on second axle and positioned at the first axle and second axle The 3rd gear (74,274) on parallel jackshaft (72,276), the 3rd gear and the first gear and described second Each of gear is meshed.
7. speed changer according to claim 6, wherein, the second gear is one or more teeth of second axle The gear often engaged with the output section of the second clutch in wheel.
8. speed changer according to claim 6, wherein, the first axle and second axle and the output section are with V Shaped configuration is set.
9. speed changer according to claim 8, wherein, the first axle and second axle parallel to the output section, And the distance at the center of the first axle to the center of the output section is equal to center to the output section of second axle Center distance.
10. speed changer according to claim 6, wherein, the diameter of the diameter than the second gear of the first gear It is small.
11. speed changers according to claim 5, wherein, the output section of the first clutch and the second clutch Output section same center each other.
12. speed changers according to claim 11, wherein, the output section includes the output section with the first clutch With the concentric output shaft in the output section of the second clutch.
13. speed changers according to claim 1, wherein, the multiple first gear ratio and one or more the Gear ratio in two gear ratios when the order increased by gear ratio is used the multiple first gear ratio with it is one or Alternative between more second gear ratios.
14. speed changers according to claim 1, wherein, one or more gears of the alternative moment of torsion transmission path Than less than the multiple first gear ratio and one or more second gear ratio.
15. speed changers according to claim 1, wherein, the alternative moment of torsion transmission path includes the connection first axle With the transfer part of second axle.
16. speed changers according to claim 1, wherein, the alternative moment of torsion transmission path includes fluid driver, described Fluid driver includes the part of the pump driven by the part of first hop and driving second hop Fluid motor.
17. speed changers according to claim 1, wherein, the alternative moment of torsion transmission path includes belt drive or chain Formula driver.
18. speed changers according to claim 1, wherein, the alternative moment of torsion transmission path includes gear train.
19. speed changers according to claim 1, wherein, the alternative moment of torsion transmission path includes being arranged to described the The gear train of direct transmitting torque between one axle and second axle, the gear train includes gear and for optionally by institute State gear and be connected into the mechanism for being rotated together with the first axle or the gear being disconnected from the first axle and coupled.
A kind of 20. methods for speed changer (20,21,30,60,200) to be configured to provide into alternative gear ratio, wherein, it is described Speed changer includes:
Input unit (12,23,204);
Output section (18,24,240);
First hop (16,25A, 26A), first hop provides one or more geared systems level, and And a first gear of the multiple first gears between the input unit and the output section than in can be configured to provide Than;
Second hop (17,25B, 26B), second hop provides one or more geared systems level, and And a second gear of the multiple second gears between the input unit and the output section than in can be configured to provide Than;
First clutch (14,31A, 206), the first clutch is operable to optionally be attached to the input unit First hop;
Second clutch (15,31B, 208), the second clutch is operable to optionally be attached to the input unit Second hop;
Wherein:
First hop includes first axle (37A, 210) and connects the first axle to drive the first of the output section Torque coupler, first torque coupler is one or more with the output section including what is carried by the first axle One or more gears (39A, 40A, 237,238) of gear (43,44,246,248) often engagement, wherein, the speed changer Including for be selectively engaged with first torque coupler or disengagement mechanism (41A, 239);
Second hop includes the second axle (37B, 62,218) and connects second axle to drive the output section Second torque coupler, second torque coupler include being carried by the second bearing with one of the output section or more One or more gears (39B, 40B, 257) of multiple gears (43,44,246) often engagement;
Methods described includes being configured to moment of torsion from institute by the first torque coupler disengagement and by torque-transmitting mechanisms State first axle and be transferred to second axle to provide the alternative moment of torsion transmission path from the input unit to the output section, it is described Alternative moment of torsion transmission path includes at least one of one or more geared system level of first hop At least one of one or more geared system level of geared system level and second hop gear dress Put level, and there is provided more different than gear ratio with the multiple second gear than in from the multiple first gear described One or more gear ratios between input unit and the output section.
21. methods according to claim 20, wherein, one or more geared systems level of first hop One or more geared systems level including one or more gear reduction stages, and second hop includes one Individual or more gear reduction stage.
22. methods according to claim 20, wherein, it is one or more between the input unit and the output section Gear ratio less than from the multiple first gear than with the multiple second gear than gear ratio in each gear ratio.
A kind of 23. speed changers (20,21,30,60,200), including:
Input unit (12,23,204);
Output section (18,24,240);
First hop (16,25A, 26A), first hop provides one or more geared systems level, and And a first gear of the multiple first gears between the input unit and the output section than in can be configured to provide Than;
Second hop (17,25B, 26B), second hop provides one or more geared systems level, and And one or more second gear ratios between the input unit and the output section can be configured to provide;
First clutch (14,31A, 206), the first clutch is operable to optionally be attached to the input unit First hop;
Second clutch (15,31B, 208), the second clutch is operable to optionally be attached to the input unit Second hop;And
Torque-transmitting mechanisms (22,27,50,74,274), the torque-transmitting mechanisms can optionally operate into by moment of torsion from First hop is transferred to second hop to provide from the input unit to the torsion of the alternative of the output section Square transmission path, the alternative moment of torsion transmission path includes one or more geared system of first hop In one or more geared system level of at least one of level geared system level and second hop At least one geared system level, and there is provided between the input unit and the output section with the multiple first gear Than with one or more second gear than different one or more gear ratios;
Wherein:
First hop includes first axle (37A, 210), and the first axle is carried and is arranged to by the first clutch One or more gears for driving, and carry one or more gears for being arranged to drive the output section;
Second hop includes the second axle (37B, 62,218), and the second bearing is carried and is arranged to by second clutch One or more gears that device drives, and carry one or more gears for being arranged to drive the output section;And
The alternative moment of torsion transmission path independently of and bypass the output section of the first clutch and the second clutch Output section.
A kind of 24. speed changers (20,21,30,60,200), including:
Input unit (12,23,204);
Output section (18,24,240);
First hop (16,25A, 26A), first hop provides one or more geared systems level, and And a first gear of the multiple first gears between the input unit and the output section than in can be configured to provide Than;
Second hop (17,25B, 26B), second hop provides one or more geared systems level, and And one or more second gear ratios between the input unit and the output section can be configured to provide;
First clutch (14,31A, 206), the first clutch is operable to optionally be attached to the input unit First hop;
Second clutch (15,31B, 208), the second clutch is operable to optionally be attached to the input unit Second hop;And
Torque-transmitting mechanisms (22,27,50,74,274), the torque-transmitting mechanisms can optionally operate into by moment of torsion from First hop is transferred to second hop to provide from the input unit to the torsion of the alternative of the output section Square transmission path, the alternative moment of torsion transmission path includes one or more geared system of first hop In one or more geared system level of at least one of level geared system level and second hop At least one geared system level, and there is provided between the input unit and the output section with the multiple first gear Than with one or more second gear than different one or more gear ratios;
Wherein:
First hop includes first axle (37A, 210), and the first axle is carried and is arranged to by the first clutch One or more gears for driving, and carry one or more gears for being arranged to drive the output section;
Second hop includes the second axle (37B, 62,218), and the second bearing is carried and is arranged to by second clutch One or more gears that device drives, and carry one or more gears for being arranged to drive the output section;And
The torque-transmitting mechanisms include torque transfer member, the torque transfer member and the multiple first gear ratio of offer With one or more second gear than all parts separate.
A kind of 25. speed changers (20,21,30,60,200), including:
Input unit (12,23,204);
Output section (18,24,240);
First hop (16,25A, 26A), first hop provides one or more geared systems level, and And a first gear of the multiple first gears between the input unit and the output section than in can be configured to provide Than;
Second hop (17,25B, 26B), second hop provides one or more geared systems level, and And one or more second gear ratios between the input unit and the output section can be configured to provide;
First clutch (14,31A, 206), the first clutch is operable to optionally be attached to the input unit First hop;
Second clutch (15,31B, 208), the second clutch is operable to optionally be attached to the input unit Second hop;And
Torque-transmitting mechanisms (22,27,50,74,274), the torque-transmitting mechanisms can optionally operate into by moment of torsion from First hop is transferred to second hop to provide from the input unit to the torsion of the alternative of the output section Square transmission path, the alternative moment of torsion transmission path includes one or more geared system of first hop In one or more geared system level of at least one of level geared system level and second hop At least one geared system level, and there is provided between the input unit and the output section with the multiple first gear Than with one or more second gear than different one or more gear ratios;
Wherein:
First hop includes first axle (37A, 210), and the first axle is carried and is arranged to by the first clutch One or more gears for driving, and carry one or more gears for being arranged to drive the output section;
Second hop includes the second axle (37B, 62,218), and the second bearing is carried and is arranged to by second clutch One or more gears that device drives, and carry one or more gears for being arranged to drive the output section;And
The torque-transmitting mechanisms include being configured to the gear train of the transmitting torque between the first axle and second axle, institute Stating gear train includes the first gear (68,234) in the first axle and the second gear on second axle (64,272) and on the jackshaft (72,276) parallel with the first axle and second axle the 3rd gear (74, 274)。
CN201380016153.9A 2012-03-23 2013-03-22 Double-clutch type power transmission with the alternative moment of torsion transmission path for providing alternative gearratio CN104395648B (en)

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